Court documents say an investigation began May 19, when a neighbor contacted authorities to check on the welfare of a man stumbling on the front porch of a home. The neighbor says she saw the man covered in feces when she went to help him.

Investigators discovered the man had survived a stroke in 2000 and used a wheelchair after having his leg amputated three years ago.

The man told detectives Dickinson had shut him in a "filthy" room for the past two years.

Online court records in Johnson County didn't list an attorney who could comment on Dickinson's behalf.